Lamp burner



Get. 4, 1938. MENNA 2,132,119

. LAMP BURNER Filed March 24, 1936 *4; \ATTORNEK Patented Oct. 4, 1938 UNITED STATES LAMP BURNER Antonio Menna, Newark, N. J assignor to Lovell- Dressel Company, Inc., Arlington, N. J a corporation of Maine Application March 24,

' 3 Claims.

My invention relates to improvements in lamp burners of the type adapted for use in hand lanterns, and other lamps, and the same has for its object to provide a simple, efficient and reliable burners capable of producing a large bright flame which will burn without smoking or flickerlng.

Further, said invention has for its object to provide a burner in which the flame spreader is capable of producing a larger flame of greater lighting power or luminosity for a given size of wick than would be possible to obtain in the absence of such flame spreader.

Further, said invention has for its object to provide a device of the character specified in which the flame spreader is constructed to maintain a predetermined height of the flame and to minimize the tendency of the flame to be drawn upwardly or creep as the lamp heats up, and which will permit of the lantern being used for heavy signaling without causing flickering or extinguishing.

Further, said invention has for its object to provide a device of the character specified in which the flame spreader is constructed to cause the air for supporting combustion to be directed towards the flame in directions extending more or less transversely thereof and to minimize the force and effects of ascending air currents upon the flame.

Further, said invention has for its object to provide a device of the character specified in which the primary air introduced for supporting combustion is combined with a series of jets of supplementary air directed inwardly and downwardly into the flame.

Further, said invention has for its object to provide a device of the character specified in which a combined flame spreader and baffle serve to reinforce each other to form a strong, rigid structure.

Other objects will in part be obvious and in part be pointed out hereinafter.

To the attainment of the aforesaid objects and ends my invention consists in the novel features of construction, and in the combination, connection, and arrangement of parts hereinafter more fully described and. then pointed out in the claims.

In the accompanying drawing:-

Figure 1 is a side view of one form of burner constructed according to and embodying my said invention;

Fig. 2 is an end view thereof;

Fig. 3 is a plan thereof;

1936, Serial No. 70,583

Fig. 4 is a vertical section taken on the line 44 of Fig. 1;

Fig. 5 is a horizontal section on the line 5-5 of Fig. 2;

Fig. 6 is a detail perspective view of the baflie member detached from the burner, and

Fig. 7 is a face view of the blank from which the bafile member shown at Fig. 6 is formed.

In said drawing, the base portion In of the burner is provided with a lower reduced part II having vertically and circumferentially extending grooves I2 and 13 therein serving as means for locking the device into the oil font of the lamp. The base portion at its upper end, has a horizontal flange l4 and a central domeshaped portion iii. A flat wick tube I6 is disposed centrally within the base portion lll and dome-portion l5, and has its lower end projecting slightly below the bottom of said base portion. The upper end of the tube 16 projects above the dome portion i5. The tube i6 is preferably constructed from a piece of sheet metal having the vertical edges thereof interlocked as shown at IT.

The base portion In below. the flange I4 is provided with aligned holes l8 serving as bearings for the wick raising shaft 19 having star wheels 20 extending into the Wick tube IS.

The flame spreader 2! is preferably formed from a piece of sheet metal and includes the standards 22 for supporting the spreader 2! upon the flange M. The lower ends of the standards are provided with prongs 23 extending through slots 24 in the flange l4 and bent over whereby the flame spreader 2| is secured in place upon the flange. The upper part of the flame spreader 2i comprises the flat side portions 25 and 26 formed integrally with the upper ends of the standards 22; the side portion 25 being integrally connected at both ends with the standards 22, and the portion 26 being integrally connected to one standard at one end and having a free end portion 21 directed inwardly and overlapping the other standard at the inner side thereof. The side portions 25 and 26 are formed to extend upwardly and inwardly at opposite sides of the broad sides of the tube It and are perforated as shown at 28, to provide upon each portion 25 and 26 a multiplicity of jet openings through which air passes to be discharged in relatively small jets directed inwardly and downwardly towards the upper end 29 of the wick tube IS. The upper portions 30 of the standards 22 provide imperforate vertical end walls disposed transversely of the portions 25 and 26 at the ends ber 34 formed from a piece of sheet metal stamped out and bent to provide a horizontal or transverse imperforate partition or baille plate 35 surrounding the wick tube |6 at points slightly below the mouth thereof, a suitable opening 36 being provided in said ballle portion 35 and conforming in shape to and fitting the tube l6. Theportion 35 substantially fits the enclosure 3| slightly above the lower edges of the. plate portions 25 and 26. The baflle 35 has up-turned flange portions 31 and 38 at the ends thereof engaging the end walls 30, the parts being secured together by suitable means, such as the rivets 39. The corner portions'of the baflle plate 35 are up-turned, as indicated at 40, about longitudinally extending lines of bends 4| substantially in vertical alignment with the upper edges 32 of the portions 25 and'26, and provide four openings 42 through the baffle plate substantially at the four corners of the enclosure 3| for the passage of air to the burner. The air currents passing vertically through the openings 42 at each side are directed inwardly towards each other by the baffle portions 46 and are discharged through the outlet openings 43 formed by the baille portions 40 and walls 25 and 26, the latter serving to deflect the incoming currents of primary air downwardly towards the flame as the jets of supplementary air induced through the openings 28 arecaused to unite and combine therewith. The opposite longitudinal edges of the baffle 35 are also preferably recessed at 44 to provide central openings at the inner sides of the deflecting plates 25 and 26 for the introduction of additional air which is also deflected inwardly and downwardly by the plates 25and 26 and subjected to the air jets.

In my invention the flame is insulated against vertically ascending air currents by the imperforate barrier 35, all of the vertical openings 42 and 44 thereof .being outside of the downward vertical projection of the edges. of the mouth 33 of the enclosure 3|. The air currents are deflected inwardly and downwardly towards the flame at the fiat sides thereof by the deflectors 25 and 26, while being acted upon by the air jets through the openings 28. The inwardly deflected air currents are concentrated by the verticalfbafile portions 46 upon the flame vertically below the reduced central portion of the flaring mouth 33 to improve combustion and produce a bright, steady and intense flame.

The structure embodying my invention allows the'use of a poorer grade of kerosene without causing smoking, and permits of the use of signal lanterns for heavy signaling, involving jarring and sudden movement. and stoppage of movement of the lantern without causing flickering or extinguishing of the flame.

In the operation of the lamp the flame spreader 2| including the baille 34 serves as an automatic control for maintaining the flame at the desired height and preventing the drawing up or flickering of the flame liable to occur when strong updraft currents develop as the lamp heats up. I obviate updraft currents by the construction embodying the present invention.

' The bafile member 34 also serves to reinforce the enclosure 3| internally, and to anchor the same to the wick tube l6 at the upper end thereof,

thereby forming a strong, rigid and durable structure.

I Having thus described my invention, what I claim and desire to secure by Letters Patent is:

v1. In a lamp burner, comprising a wick tube, a flame spreader having upwardly and inwardly in-- clined side walls and vertical end walls, a transverse partitionsurrounding said wick tube within said flame spreader and having lip-turned end portions engaging said end walls and secured thereto, said partition having up-turned portions at the corners thereof constituting baffles arranged substantially in vertical alignment with the upper edges of said inclined wall portions, and openings in said transverse partition between said bafiles and said inclined side walls.

2. In a lamp burner, comprising a wick tube, a flame spreader including upwardly and inwardly inclined, flat, perforated side walls and vertical end walls, a transverse partition disposed about said wick tube at the lower end of said flame spreader and secured thereto, vertical partitions on said transverse partition substantially in vertical alignment with the upper edges of said inclined walls at the ends thereof constituting baffles, and openings in said transverse partition between said vertical partitions and said inclined walls providing a tortuous path for the air supplied to said flame.

' 3. In a lamp burner, comprising a wick tube, a flame spreader including upwardly and inwardly inclined, perforated side, wall portions having convex upper edges, a transverse partition disposed about the upper end of said wick tube in the lower portion of said flame spreader, openings in said partition at the corners and intermediate points of the margin thereof substantially within the confines of the projection of said inclined wall portions, and vertical partitions constituting baffles arranged in separated relation to eachother at the ends of said inclined wall portions for directing the air entering said corner openings inwardly towards the center of the inclined wall portions.

ANTONIO MENNA. 

